X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/32f2ebbf2f3a81ae2cc82595789fdc1e245c0efb..9e1fc0e42822fdf1159582f1b73cde0c7d15bc92:/src/gtk/toplevel.cpp diff --git a/src/gtk/toplevel.cpp b/src/gtk/toplevel.cpp index 29eed82776..173c833308 100644 --- a/src/gtk/toplevel.cpp +++ b/src/gtk/toplevel.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: toplevel.cpp +// Name: src/gtk/toplevel.cpp // Purpose: // Author: Robert Roebling // Id: $Id$ @@ -7,6 +7,9 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" + // ============================================================================ // declarations // ============================================================================ @@ -15,33 +18,23 @@ // headers // ---------------------------------------------------------------------------- -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma implementation "toplevel.h" -#endif - -// For compilers that support precompilation, includes "wx.h". -#include "wx/wxprec.h" - #ifdef __VMS #define XIconifyWindow XICONIFYWINDOW #endif -#include "wx/defs.h" - #include "wx/toplevel.h" -#include "wx/log.h" -#include "wx/dialog.h" -#include "wx/control.h" -#include "wx/app.h" -#include "wx/dcclient.h" + +#ifndef WX_PRECOMP + #include "wx/frame.h" + #include "wx/icon.h" + #include "wx/log.h" + #include "wx/app.h" +#endif + #include "wx/gtk/private.h" -#include "wx/timer.h" -#include "wx/settings.h" +#include "wx/evtloop.h" -#include -#include #include -#include #include #include "wx/gtk/win_gtk.h" @@ -51,19 +44,10 @@ // XA_CARDINAL #include -// ---------------------------------------------------------------------------- -// idle system -// ---------------------------------------------------------------------------- - -extern void wxapp_install_idle_handler(); -extern bool g_isIdle; - // ---------------------------------------------------------------------------- // data // ---------------------------------------------------------------------------- -extern wxList wxPendingDelete; - extern int g_openDialogs; extern wxWindowGTK *g_delayedFocus; @@ -76,19 +60,59 @@ static wxTopLevelWindowGTK *g_lastActiveFrame = (wxTopLevelWindowGTK*) NULL; // either TRUE or FALSE and an activate event will be sent during the next // OnIdle() call and it is reset to -1: this value means that we shouldn't // send any activate events at all -static int g_sendActivateEvent = -1; +static int g_sendActivateEvent = -1; + +//----------------------------------------------------------------------------- +// RequestUserAttention related functions +//----------------------------------------------------------------------------- + +extern "C" { +static void wxgtk_window_set_urgency_hint (GtkWindow *win, + gboolean setting) +{ + wxASSERT_MSG( GTK_WIDGET_REALIZED(win), wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") ); + GdkWindow *window = GTK_WIDGET(win)->window; + XWMHints *wm_hints; + + wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window)); + + if (!wm_hints) + wm_hints = XAllocWMHints(); + + if (setting) + wm_hints->flags |= XUrgencyHint; + else + wm_hints->flags &= ~XUrgencyHint; + + XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints); + XFree(wm_hints); +} + +static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win ) +{ +#if GTK_CHECK_VERSION(2,7,0) + if(!gtk_check_version(2,7,0)) + gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE); + else +#endif + wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE); + + win->m_urgency_hint = -2; + return FALSE; +} +} //----------------------------------------------------------------------------- // "focus_in_event" //----------------------------------------------------------------------------- -static gint gtk_frame_focus_in_callback( GtkWidget *widget, +extern "C" { +static gboolean gtk_frame_focus_in_callback( GtkWidget *widget, GdkEvent *WXUNUSED(event), wxTopLevelWindowGTK *win ) { - if (g_isIdle) - wxapp_install_idle_handler(); - + // don't need to install idle handler, its done from "event" signal + switch ( g_sendActivateEvent ) { case -1: @@ -105,68 +129,96 @@ static gint gtk_frame_focus_in_callback( GtkWidget *widget, g_activeFrame = win; g_lastActiveFrame = g_activeFrame; - + // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() ); - + + // MR: wxRequestUserAttention related block + switch( win->m_urgency_hint ) + { + default: + g_source_remove( win->m_urgency_hint ); + // no break, fallthrough to remove hint too + case -1: +#if GTK_CHECK_VERSION(2,7,0) + if(!gtk_check_version(2,7,0)) + gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE); + else +#endif + { + wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE); + } + + win->m_urgency_hint = -2; + break; + + case -2: break; + } + wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame); - wxActivateEvent event(wxEVT_ACTIVATE, TRUE, g_activeFrame->GetId()); + wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId()); event.SetEventObject(g_activeFrame); g_activeFrame->GetEventHandler()->ProcessEvent(event); return FALSE; } +} //----------------------------------------------------------------------------- // "focus_out_event" //----------------------------------------------------------------------------- -static gint gtk_frame_focus_out_callback( GtkWidget *widget, - GdkEventFocus *WXUNUSED(gdk_event), +extern "C" { +static gboolean gtk_frame_focus_out_callback( GtkWidget *widget, + GdkEventFocus *WXUNUSED(gdk_event), wxTopLevelWindowGTK *win ) { - if (g_isIdle) - wxapp_install_idle_handler(); + // don't need to install idle handler, its done from "event" signal // if the focus goes out of our app alltogether, OnIdle() will send // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset // g_sendActivateEvent to -1 g_sendActivateEvent = 0; - + // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") ); - + // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() ); if (g_activeFrame) { wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame); - wxActivateEvent event(wxEVT_ACTIVATE, FALSE, g_activeFrame->GetId()); + wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId()); event.SetEventObject(g_activeFrame); g_activeFrame->GetEventHandler()->ProcessEvent(event); g_activeFrame = NULL; } - + return FALSE; } +} //----------------------------------------------------------------------------- // "focus" from m_window //----------------------------------------------------------------------------- -static gint gtk_frame_focus_callback( GtkWidget *widget, GtkDirectionType WXUNUSED(d), wxWindow *WXUNUSED(win) ) +extern "C" { +static gboolean gtk_frame_focus_callback( GtkWidget *WXUNUSED(widget), + GtkDirectionType WXUNUSED(d), + wxWindow *WXUNUSED(win) ) { if (g_isIdle) wxapp_install_idle_handler(); // This disables GTK's tab traversal - gtk_signal_emit_stop_by_name( GTK_OBJECT(widget), "focus" ); return TRUE; } +} //----------------------------------------------------------------------------- // "size_allocate" //----------------------------------------------------------------------------- +extern "C" { static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxTopLevelWindowGTK *win ) { if (g_isIdle) @@ -178,29 +230,35 @@ static void gtk_frame_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* if ((win->m_width != alloc->width) || (win->m_height != alloc->height)) { /* - wxPrintf( "OnSize from " ); + wxPrintf( wxT("gtk_frame_size_callback from ") ); if (win->GetClassInfo() && win->GetClassInfo()->GetClassName()) wxPrintf( win->GetClassInfo()->GetClassName() ); - wxPrintf( " %d %d %d %d\n", (int)alloc->x, + wxPrintf( wxT(" %d %d %d %d\n"), (int)alloc->x, (int)alloc->y, (int)alloc->width, (int)alloc->height ); */ + // Tell the wxWindow class about the new size win->m_width = alloc->width; win->m_height = alloc->height; + win->GtkUpdateSize(); } } +} //----------------------------------------------------------------------------- // "delete_event" //----------------------------------------------------------------------------- -static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WXUNUSED(event), wxTopLevelWindowGTK *win ) +extern "C" { +static gboolean +gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), + GdkEvent *WXUNUSED(event), + wxTopLevelWindowGTK *win ) { - if (g_isIdle) - wxapp_install_idle_handler(); + // don't need to install idle handler, its done from "event" signal if (win->IsEnabled() && (g_openDialogs == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) || @@ -209,17 +267,20 @@ static gint gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget), GdkEvent *WX return TRUE; } +} //----------------------------------------------------------------------------- // "configure_event" //----------------------------------------------------------------------------- -static gint -gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxTopLevelWindowGTK *win ) +extern "C" { +static gboolean +gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), + GdkEventConfigure *WXUNUSED(event), + wxTopLevelWindowGTK *win ) { - if (g_isIdle) - wxapp_install_idle_handler(); + // don't need to install idle handler, its done from "event" signal if (!win->m_hasVMT || !win->IsShown()) return FALSE; @@ -237,6 +298,7 @@ gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WX return FALSE; } +} //----------------------------------------------------------------------------- // "realize" from m_widget @@ -245,6 +307,7 @@ gtk_frame_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WX // we cannot MWM hints and icons before the widget has been realized, // so we do this directly after realization +extern "C" { static void gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget), wxTopLevelWindowGTK *win ) @@ -261,7 +324,7 @@ gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget), // GTK's shrinking/growing policy if ((win->m_gdkFunc & GDK_FUNC_RESIZE) == 0) - gtk_window_set_policy(GTK_WINDOW(win->m_widget), 0, 0, 1); + gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE); else gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1); @@ -273,36 +336,45 @@ gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget), win->SetIcons( iconsOld ); } } +} //----------------------------------------------------------------------------- // "map_event" from m_widget //----------------------------------------------------------------------------- +extern "C" { static void gtk_frame_map_callback( GtkWidget * WXUNUSED(widget), GdkEvent * WXUNUSED(event), wxTopLevelWindow *win ) { - win->SetIconizeState(FALSE); + win->SetIconizeState(false); +} } //----------------------------------------------------------------------------- // "unmap_event" from m_widget //----------------------------------------------------------------------------- +extern "C" { static void gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget), GdkEvent * WXUNUSED(event), wxTopLevelWindow *win ) { - win->SetIconizeState(TRUE); + win->SetIconizeState(true); +} } //----------------------------------------------------------------------------- // "expose_event" of m_client //----------------------------------------------------------------------------- -static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_event, wxWindow *win ) +extern "C" { +static gboolean +gtk_window_expose_callback( GtkWidget *widget, + GdkEventExpose *gdk_event, + wxWindow *win ) { GtkPizza *pizza = GTK_PIZZA(widget); @@ -316,28 +388,8 @@ static int gtk_window_expose_callback( GtkWidget *widget, GdkEventExpose *gdk_ev return FALSE; } - -//----------------------------------------------------------------------------- -// "draw" of m_client -//----------------------------------------------------------------------------- - -#ifndef __WXGTK20__ - -static void gtk_window_draw_callback( GtkWidget *widget, GdkRectangle *rect, wxWindow *win ) -{ - GtkPizza *pizza = GTK_PIZZA(widget); - - gtk_paint_flat_box (win->m_widget->style, - pizza->bin_window, GTK_STATE_NORMAL, - GTK_SHADOW_NONE, - rect, - win->m_widget, - (char *)"base", - 0, 0, -1, -1); } -#endif // GTK+ 1.x - // ---------------------------------------------------------------------------- // wxTopLevelWindowGTK itself // ---------------------------------------------------------------------------- @@ -376,9 +428,6 @@ static void wxInsertChildInTopLevelWindow( wxTopLevelWindowGTK* parent, wxWindow child->m_width, child->m_height ); } - - // resize on OnInternalIdle - parent->GtkUpdateSize(); } // ---------------------------------------------------------------------------- @@ -387,16 +436,19 @@ static void wxInsertChildInTopLevelWindow( wxTopLevelWindowGTK* parent, wxWindow void wxTopLevelWindowGTK::Init() { - m_sizeSet = FALSE; + m_sizeSet = false; m_miniEdge = 0; m_miniTitle = 0; m_mainWidget = (GtkWidget*) NULL; - m_insertInClientArea = TRUE; - m_isIconized = FALSE; - m_fsIsShowing = FALSE; - m_themeEnabled = TRUE; + m_insertInClientArea = true; + m_isIconized = false; + m_fsIsShowing = false; + m_fsSaveFlag = 0; + m_themeEnabled = true; m_gdkDecor = m_gdkFunc = 0; - m_grabbed = FALSE; + m_grabbed = false; + + m_urgency_hint = -2; } bool wxTopLevelWindowGTK::Create( wxWindow *parent, @@ -415,13 +467,13 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, wxTopLevelWindows.Append( this ); - m_needParent = FALSE; + m_needParent = false; if (!PreCreation( parent, pos, size ) || !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name )) { wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") ); - return FALSE; + return false; } m_title = title; @@ -434,7 +486,6 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, { if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) { -#ifdef __WXGTK20__ m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL); // Tell WM that this is a dialog window and make it center // on parent by default (this is what GtkDialog ctor does): @@ -442,46 +493,70 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, GDK_WINDOW_TYPE_HINT_DIALOG); gtk_window_set_position(GTK_WINDOW(m_widget), GTK_WIN_POS_CENTER_ON_PARENT); -#else - m_widget = gtk_window_new(GTK_WINDOW_DIALOG); -#endif } else { m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL); #if GTK_CHECK_VERSION(2,1,0) - if (style & wxFRAME_TOOL_WINDOW) - gtk_window_set_type_hint(GTK_WINDOW(m_widget), - GDK_WINDOW_TYPE_HINT_UTILITY); + if (!gtk_check_version(2,1,0)) + { + if (style & wxFRAME_TOOL_WINDOW) + { + gtk_window_set_type_hint(GTK_WINDOW(m_widget), + GDK_WINDOW_TYPE_HINT_UTILITY); + + // On some WMs, like KDE, a TOOL_WINDOW will still show + // on the taskbar, but on Gnome a TOOL_WINDOW will not. + // For consistency between WMs and with Windows, we + // should set the NO_TASKBAR flag which will apply + // the set_skip_taskbar_hint if it is available, + // ensuring no taskbar entry will appear. + style |= wxFRAME_NO_TASKBAR; + } + } #endif - } } wxWindow *topParent = wxGetTopLevelParent(m_parent); if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) && - (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) || - (style & wxFRAME_FLOAT_ON_PARENT))) + (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) || + (style & wxFRAME_FLOAT_ON_PARENT))) { gtk_window_set_transient_for( GTK_WINDOW(m_widget), GTK_WINDOW(topParent->m_widget) ); } #if GTK_CHECK_VERSION(2,2,0) - if (style & wxFRAME_NO_TASKBAR) + if (!gtk_check_version(2,2,0)) { - gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE); + if (style & wxFRAME_NO_TASKBAR) + { + gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE); + } } #endif - if (!name.IsEmpty()) - gtk_window_set_wmclass( GTK_WINDOW(m_widget), wxGTK_CONV( name ), wxGTK_CONV( name ) ); +#ifdef __WXGTK24__ + if (!gtk_check_version(2,4,0)) + { + if (style & wxSTAY_ON_TOP) + { + gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE); + } + } +#endif + +#if 0 + if (!name.empty()) + gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) ); +#endif gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) ); GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS ); - gtk_signal_connect( GTK_OBJECT(m_widget), "delete_event", - GTK_SIGNAL_FUNC(gtk_frame_delete_callback), (gpointer)this ); + g_signal_connect (m_widget, "delete_event", + G_CALLBACK (gtk_frame_delete_callback), this); // m_mainWidget holds the toolbar, the menubar and the client area m_mainWidget = gtk_pizza_new(); @@ -492,12 +567,8 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, if (m_miniEdge == 0) // wxMiniFrame has its own version. { // For m_mainWidget themes - gtk_signal_connect( GTK_OBJECT(m_mainWidget), "expose_event", - GTK_SIGNAL_FUNC(gtk_window_expose_callback), (gpointer)this ); -#ifndef __WXGTK20__ - gtk_signal_connect( GTK_OBJECT(m_mainWidget), "draw", - GTK_SIGNAL_FUNC(gtk_window_draw_callback), (gpointer)this ); -#endif + g_signal_connect (m_mainWidget, "expose_event", + G_CALLBACK (gtk_window_expose_callback), this); } // m_wxwindow only represents the client area without toolbar and menubar @@ -512,8 +583,8 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, if (m_parent) m_parent->AddChild( this ); // the user resized the frame by dragging etc. - gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate", - GTK_SIGNAL_FUNC(gtk_frame_size_callback), (gpointer)this ); + g_signal_connect (m_widget, "size_allocate", + G_CALLBACK (gtk_frame_size_callback), this); PostCreation(); @@ -524,40 +595,45 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, // we cannot set MWM hints and icons before the widget has // been realized, so we do this directly after realization - gtk_signal_connect( GTK_OBJECT(m_widget), "realize", - GTK_SIGNAL_FUNC(gtk_frame_realized_callback), (gpointer) this ); - - // the only way to get the window size is to connect to this event - gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event", - GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this ); + g_signal_connect (m_widget, "realize", + G_CALLBACK (gtk_frame_realized_callback), this); // map and unmap for iconized state - gtk_signal_connect( GTK_OBJECT(m_widget), "map_event", - GTK_SIGNAL_FUNC(gtk_frame_map_callback), (gpointer)this ); - gtk_signal_connect( GTK_OBJECT(m_widget), "unmap_event", - GTK_SIGNAL_FUNC(gtk_frame_unmap_callback), (gpointer)this ); + g_signal_connect (m_widget, "map_event", + G_CALLBACK (gtk_frame_map_callback), this); + g_signal_connect (m_widget, "unmap_event", + G_CALLBACK (gtk_frame_unmap_callback), this); // the only way to get the window size is to connect to this event - gtk_signal_connect( GTK_OBJECT(m_widget), "configure_event", - GTK_SIGNAL_FUNC(gtk_frame_configure_callback), (gpointer)this ); + g_signal_connect (m_widget, "configure_event", + G_CALLBACK (gtk_frame_configure_callback), this); // disable native tab traversal - gtk_signal_connect( GTK_OBJECT(m_widget), "focus", - GTK_SIGNAL_FUNC(gtk_frame_focus_callback), (gpointer)this ); + g_signal_connect (m_widget, "focus", + G_CALLBACK (gtk_frame_focus_callback), this); // activation - gtk_signal_connect( GTK_OBJECT(m_widget), "focus_in_event", - GTK_SIGNAL_FUNC(gtk_frame_focus_in_callback), (gpointer)this ); - gtk_signal_connect( GTK_OBJECT(m_widget), "focus_out_event", - GTK_SIGNAL_FUNC(gtk_frame_focus_out_callback), (gpointer)this ); - + g_signal_connect_after (m_widget, "focus_in_event", + G_CALLBACK (gtk_frame_focus_in_callback), this); + g_signal_connect_after (m_widget, "focus_out_event", + G_CALLBACK (gtk_frame_focus_out_callback), this); + // decorations - if ((m_miniEdge > 0) || (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER)) + if ((style & wxSIMPLE_BORDER) || (style & wxNO_BORDER)) { m_gdkDecor = 0; m_gdkFunc = 0; } else + if (m_miniEdge > 0) + { + m_gdkDecor = 0; + m_gdkFunc = 0; + + if ((style & wxRESIZE_BORDER) != 0) + m_gdkFunc |= GDK_FUNC_RESIZE; + } + else { m_gdkDecor = (long) GDK_DECOR_BORDER; m_gdkFunc = (long) GDK_FUNC_MOVE; @@ -593,109 +669,140 @@ bool wxTopLevelWindowGTK::Create( wxWindow *parent, } } - return TRUE; + return true; } wxTopLevelWindowGTK::~wxTopLevelWindowGTK() { if (m_grabbed) { - wxASSERT_MSG( FALSE, _T("Window still grabbed")); + wxFAIL_MSG(_T("Window still grabbed")); RemoveGrab(); } - m_isBeingDeleted = TRUE; + m_isBeingDeleted = true; // it may also be GtkScrolledWindow in the case of an MDI child if (GTK_IS_WINDOW(m_widget)) { gtk_window_set_focus( GTK_WINDOW(m_widget), NULL ); } - + if (g_activeFrame == this) g_activeFrame = NULL; if (g_lastActiveFrame == this) g_lastActiveFrame = NULL; } - +bool wxTopLevelWindowGTK::EnableCloseButton( bool enable ) +{ + if (enable) + m_gdkFunc |= GDK_FUNC_CLOSE; + else + m_gdkFunc &= ~GDK_FUNC_CLOSE; + + if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window)) + gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc ); + + return true; +} bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long style ) { - if (show == m_fsIsShowing) return FALSE; // return what? + if (show == m_fsIsShowing) + return false; // return what? m_fsIsShowing = show; -#ifdef __WXGTK20__ - - if (show) - gtk_window_fullscreen( GTK_WINDOW( m_widget ) ); - else - gtk_window_unfullscreen( GTK_WINDOW( m_widget ) ); - -#else - - GdkWindow *window = m_widget->window; wxX11FullScreenMethod method = wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(), (WXWindow)GDK_ROOT_WINDOW()); - if (show) +#if GTK_CHECK_VERSION(2,2,0) + // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions + // to switch to fullscreen, which is not always available. We must + // check if WM supports the spec and use legacy methods if it + // doesn't. + if ( (method == wxX11_FS_WMSPEC) && !gtk_check_version(2,2,0) ) { - m_fsSaveFlag = style; - GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y ); - GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height ); - - int screen_width,screen_height; - wxDisplaySize( &screen_width, &screen_height ); - - gint client_x, client_y, root_x, root_y; - gint width, height; - - if (method != wxX11_FS_WMSPEC) + if (show) { - // don't do it always, Metacity hates it - m_fsSaveGdkFunc = m_gdkFunc; - m_fsSaveGdkDecor = m_gdkDecor; - m_gdkFunc = m_gdkDecor = 0; - gdk_window_set_decorations(window, (GdkWMDecoration)0); - gdk_window_set_functions(window, (GdkWMFunction)0); + m_fsSaveFlag = style; + gtk_window_fullscreen( GTK_WINDOW( m_widget ) ); + } + else + { + m_fsSaveFlag = 0; + gtk_window_unfullscreen( GTK_WINDOW( m_widget ) ); } - - gdk_window_get_origin (m_widget->window, &root_x, &root_y); - gdk_window_get_geometry (m_widget->window, &client_x, &client_y, - &width, &height, NULL); - - gdk_window_move_resize (m_widget->window, -client_x, -client_y, - screen_width + 1, screen_height + 1); - - wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(), - (WXWindow)GDK_ROOT_WINDOW(), - (WXWindow)GDK_WINDOW_XWINDOW(window), - show, &m_fsSaveFrame, method); } else +#endif // GTK+ >= 2.2.0 { - if (method != wxX11_FS_WMSPEC) + GdkWindow *window = m_widget->window; + + if (show) { - // don't do it always, Metacity hates it - m_gdkFunc = m_fsSaveGdkFunc; - m_gdkDecor = m_fsSaveGdkDecor; - gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor); - gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc); + m_fsSaveFlag = style; + GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y ); + GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height ); + + int screen_width,screen_height; + wxDisplaySize( &screen_width, &screen_height ); + + gint client_x, client_y, root_x, root_y; + gint width, height; + + if (method != wxX11_FS_WMSPEC) + { + // don't do it always, Metacity hates it + m_fsSaveGdkFunc = m_gdkFunc; + m_fsSaveGdkDecor = m_gdkDecor; + m_gdkFunc = m_gdkDecor = 0; + gdk_window_set_decorations(window, (GdkWMDecoration)0); + gdk_window_set_functions(window, (GdkWMFunction)0); + } + + gdk_window_get_origin (m_widget->window, &root_x, &root_y); + gdk_window_get_geometry (m_widget->window, &client_x, &client_y, + &width, &height, NULL); + + gdk_window_move_resize (m_widget->window, -client_x, -client_y, + screen_width + 1, screen_height + 1); + + wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(), + (WXWindow)GDK_ROOT_WINDOW(), + (WXWindow)GDK_WINDOW_XWINDOW(window), + show, &m_fsSaveFrame, method); + } + else // hide + { + m_fsSaveFlag = 0; + if (method != wxX11_FS_WMSPEC) + { + // don't do it always, Metacity hates it + m_gdkFunc = m_fsSaveGdkFunc; + m_gdkDecor = m_fsSaveGdkDecor; + gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor); + gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc); + } + + wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(), + (WXWindow)GDK_ROOT_WINDOW(), + (WXWindow)GDK_WINDOW_XWINDOW(window), + show, &m_fsSaveFrame, method); + + SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y, + m_fsSaveFrame.width, m_fsSaveFrame.height); } - - wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(), - (WXWindow)GDK_ROOT_WINDOW(), - (WXWindow)GDK_WINDOW_XWINDOW(window), - show, &m_fsSaveFrame, method); - - SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y, - m_fsSaveFrame.width, m_fsSaveFrame.height); } -#endif - return TRUE; + // documented behaviour is to show the window if it's still hidden when + // showing it full screen + if ( show && !IsShown() ) + Show(); + + return true; } // ---------------------------------------------------------------------------- @@ -706,6 +813,9 @@ bool wxTopLevelWindowGTK::Show( bool show ) { wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") ); + if (show == IsShown()) + return true; + if (show && !m_sizeSet) { /* by calling GtkOnSize here, we don't have to call @@ -713,15 +823,23 @@ bool wxTopLevelWindowGTK::Show( bool show ) much ugly flicker or from within the size_allocate handler, because GTK 1.1.X forbids that. */ - GtkOnSize( m_x, m_y, m_width, m_height ); + GtkOnSize(); } - - if (show) - gtk_widget_set_uposition( m_widget, m_x, m_y ); - + + // This seems no longer to be needed and the call + // itself is deprecated. + // + //if (show) + // gtk_widget_set_uposition( m_widget, m_x, m_y ); + return wxWindow::Show( show ); } +void wxTopLevelWindowGTK::Raise() +{ + gtk_window_present( GTK_WINDOW( m_widget ) ); +} + void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) ) { wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") ); @@ -737,7 +855,7 @@ void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int si // avoid recursions if (m_resizing) return; - m_resizing = TRUE; + m_resizing = true; int old_x = m_x; int old_y = m_y; @@ -757,7 +875,7 @@ void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int si } if (width != -1) m_width = width; if (height != -1) m_height = height; - + /* if ((sizeFlags & wxSIZE_AUTO_WIDTH) == wxSIZE_AUTO_WIDTH) { @@ -784,7 +902,7 @@ void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int si maxWidth = -1; maxHeight = -1; #endif - + if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth; if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight; if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth; @@ -794,39 +912,38 @@ void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int si { if ((m_x != old_x) || (m_y != old_y)) { - gtk_widget_set_uposition( m_widget, m_x, m_y ); + gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y ); } } if ((m_width != old_width) || (m_height != old_height)) { - if (m_widget->window) - gdk_window_resize( m_widget->window, m_width, m_height ); - else - gtk_window_set_default_size( GTK_WINDOW(m_widget), m_width, m_height ); + gtk_window_resize( GTK_WINDOW(m_widget), m_width, m_height ); /* we set the size in GtkOnSize, i.e. mostly the actual resizing is done either directly before the frame is shown or in idle time so that different calls to SetSize() don't lead to flicker. */ - m_sizeSet = FALSE; + m_sizeSet = false; } - m_resizing = FALSE; + m_resizing = false; } void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const { wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") ); - wxWindow::DoGetClientSize( width, height ); if (height) { - // mini edge - *height -= m_miniEdge*2 + m_miniTitle; + *height = m_height - 2 * m_miniEdge - m_miniTitle; + if (*height < 0) + *height = 0; } if (width) { - *width -= m_miniEdge*2; + *width = m_width - 2 * m_miniEdge; + if (*width < 0) + *width = 0; } } @@ -838,51 +955,19 @@ void wxTopLevelWindowGTK::DoSetClientSize( int width, int height ) width + m_miniEdge*2, height + m_miniEdge*2 + m_miniTitle, 0); } -void wxTopLevelWindowGTK::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), - int width, int height ) +void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH, + int maxW, int maxH, + int incW, int incH ) { - // due to a bug in gtk, x,y are always 0 - // m_x = x; - // m_y = y; - - // avoid recursions - if (m_resizing) return; - m_resizing = TRUE; - - if ( m_wxwindow == NULL ) return; - - m_width = width; - m_height = height; - - /* wxMDIChildFrame derives from wxFrame but it _is_ a wxWindow as it uses - wxWindow::Create to create it's GTK equivalent. m_mainWidget is only - set in wxFrame::Create so it is used to check what kind of frame we - have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we - skip the part which handles m_frameMenuBar, m_frameToolBar and (most - importantly) m_mainWidget */ - - int minWidth = GetMinWidth(), - minHeight = GetMinHeight(), - maxWidth = GetMaxWidth(), - maxHeight = GetMaxHeight(); - -#ifdef __WXGPE__ - // GPE's window manager doesn't like size hints - // at all, esp. when the user has to use the - // virtual keyboard. - minWidth = -1; - minHeight = -1; - maxWidth = -1; - maxHeight = -1; -#endif + wxTopLevelWindowBase::DoSetSizeHints( minW, minH, maxW, maxH, incW, incH ); - if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth; - if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight; - if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth; - if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight; - - if (m_mainWidget) + if (m_widget) { + int minWidth = GetMinWidth(), + minHeight = GetMinHeight(), + maxWidth = GetMaxWidth(), + maxHeight = GetMaxHeight(); + // set size hints gint flag = 0; // GDK_HINT_POS; GdkGeometry geom; @@ -919,18 +1004,59 @@ void wxTopLevelWindowGTK::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), (GtkWidget*) NULL, &geom, (GdkWindowHints) flag ); + } +} + + +void wxTopLevelWindowGTK::GtkOnSize() +{ + // avoid recursions + if (m_resizing) return; + m_resizing = true; - /* I revert back to wxGTK's original behaviour. m_mainWidget holds the - * menubar, the toolbar and the client area, which is represented by - * m_wxwindow. - * this hurts in the eye, but I don't want to call SetSize() - * because I don't want to call any non-native functions here. */ + if ( m_wxwindow == NULL ) return; + + /* wxMDIChildFrame derives from wxFrame but it _is_ a wxWindow as it uses + wxWindow::Create to create it's GTK equivalent. m_mainWidget is only + set in wxFrame::Create so it is used to check what kind of frame we + have here. if m_mainWidget is NULL it is a wxMDIChildFrame and so we + skip the part which handles m_frameMenuBar, m_frameToolBar and (most + importantly) m_mainWidget */ + int minWidth = GetMinWidth(), + minHeight = GetMinHeight(), + maxWidth = GetMaxWidth(), + maxHeight = GetMaxHeight(); + +#ifdef __WXGPE__ + // GPE's window manager doesn't like size hints + // at all, esp. when the user has to use the + // virtual keyboard. + minWidth = -1; + minHeight = -1; + maxWidth = -1; + maxHeight = -1; +#endif + + if ((minWidth != -1) && (m_width < minWidth)) m_width = minWidth; + if ((minHeight != -1) && (m_height < minHeight)) m_height = minHeight; + if ((maxWidth != -1) && (m_width > maxWidth)) m_width = maxWidth; + if ((maxHeight != -1) && (m_height > maxHeight)) m_height = maxHeight; + + if (m_mainWidget) + { + // m_mainWidget holds the menubar, the toolbar and the client area, + // which is represented by m_wxwindow. int client_x = m_miniEdge; int client_y = m_miniEdge + m_miniTitle; int client_w = m_width - 2*m_miniEdge; int client_h = m_height - 2*m_miniEdge - m_miniTitle; + if (client_w < 0) + client_w = 0; + if (client_h < 0) + client_h = 0; + // Let the parent perform the resize gtk_pizza_set_size( GTK_PIZZA(m_mainWidget), m_wxwindow, client_x, client_y, client_w, client_h ); @@ -941,21 +1067,21 @@ void wxTopLevelWindowGTK::GtkOnSize( int WXUNUSED(x), int WXUNUSED(y), // is no need to set the size or position of m_wxwindow. } - m_sizeSet = TRUE; + m_sizeSet = true; // send size event to frame wxSizeEvent event( wxSize(m_width,m_height), GetId() ); event.SetEventObject( this ); GetEventHandler()->ProcessEvent( event ); - m_resizing = FALSE; + m_resizing = false; } void wxTopLevelWindowGTK::OnInternalIdle() { if (!m_sizeSet && GTK_WIDGET_REALIZED(m_wxwindow)) { - GtkOnSize( m_x, m_y, m_width, m_height ); + GtkOnSize(); // we'll come back later if (g_isIdle) @@ -980,15 +1106,15 @@ void wxTopLevelWindowGTK::OnInternalIdle() } wxWindow::OnInternalIdle(); - + // Synthetize activate events. if ( g_sendActivateEvent != -1 ) { bool activate = g_sendActivateEvent != 0; - + // if (!activate) wxPrintf( wxT("de") ); // wxPrintf( wxT("activate\n") ); - + // do it only once g_sendActivateEvent = -1; @@ -1004,7 +1130,11 @@ void wxTopLevelWindowGTK::SetTitle( const wxString &title ) { wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") ); + if ( title == m_title ) + return; + m_title = title; + gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) ); } @@ -1019,7 +1149,6 @@ void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons ) wxTopLevelWindowBase::SetIcons( icons ); -#ifdef __WXGTK20__ GList *list = NULL; size_t max = icons.m_icons.GetCount(); @@ -1032,25 +1161,6 @@ void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons ) } gtk_window_set_icon_list(GTK_WINDOW(m_widget), list); g_list_free(list); - -#else // !__WXGTK20__ - GdkWindow* window = m_widget->window; - if (!window) - return; - - wxIcon icon = icons.GetIcon(-1); - if (icon.Ok()) - { - wxMask *mask = icon.GetMask(); - GdkBitmap *bm = (GdkBitmap *) NULL; - if (mask) bm = mask->GetBitmap(); - - gdk_window_set_icon( m_widget->window, (GdkWindow *) NULL, icon.GetPixmap(), bm ); - } - - wxSetIconsX11( (WXDisplay*)GDK_WINDOW_XDISPLAY( window ), - (WXWindow)GDK_WINDOW_XWINDOW( window ), icons ); -#endif // !__WXGTK20__ } // ---------------------------------------------------------------------------- @@ -1059,61 +1169,32 @@ void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons ) void wxTopLevelWindowGTK::Maximize(bool maximize) { -#ifdef __WXGTK20__ if (maximize) gtk_window_maximize( GTK_WINDOW( m_widget ) ); else gtk_window_unmaximize( GTK_WINDOW( m_widget ) ); -#else - wxFAIL_MSG( _T("not implemented") ); -#endif } bool wxTopLevelWindowGTK::IsMaximized() const { -#ifdef __WXGTK20__ if(!m_widget->window) return false; return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED; -#else - // wxFAIL_MSG( _T("not implemented") ); - - // This is an approximation - return FALSE; -#endif } void wxTopLevelWindowGTK::Restore() { -#ifdef __WXGTK20__ // "Present" seems similar enough to "restore" gtk_window_present( GTK_WINDOW( m_widget ) ); -#else - wxFAIL_MSG( _T("not implemented") ); -#endif } void wxTopLevelWindowGTK::Iconize( bool iconize ) { -#ifdef __WXGTK20__ if (iconize) gtk_window_iconify( GTK_WINDOW( m_widget ) ); else gtk_window_deiconify( GTK_WINDOW( m_widget ) ); -#else - if (iconize) - { - GdkWindow *window = m_widget->window; - - // you should do it later, for example from OnCreate() handler - wxCHECK_RET( window, _T("frame not created yet - can't iconize") ); - - XIconifyWindow( GDK_WINDOW_XDISPLAY( window ), - GDK_WINDOW_XWINDOW( window ), - DefaultScreen( GDK_DISPLAY() ) ); - } -#endif } bool wxTopLevelWindowGTK::IsIconized() const @@ -1134,9 +1215,9 @@ void wxTopLevelWindowGTK::AddGrab() { if (!m_grabbed) { - m_grabbed = TRUE; + m_grabbed = true; gtk_grab_add( m_widget ); - gtk_main(); + wxEventLoop().Run(); gtk_grab_remove( m_widget ); } } @@ -1146,7 +1227,7 @@ void wxTopLevelWindowGTK::RemoveGrab() if (m_grabbed) { gtk_main_quit(); - m_grabbed = FALSE; + m_grabbed = false; } } @@ -1162,24 +1243,17 @@ static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region) } else { -#ifdef __WXGTK20__ - gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0); -#else - wxBitmap bmp = region.ConvertToBitmap(); - bmp.SetMask(new wxMask(bmp, *wxBLACK)); - GdkBitmap* mask = bmp.GetMask()->GetBitmap(); - gdk_window_shape_combine_mask(window, mask, 0, 0); -#endif - return TRUE; + gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0); + return true; } } - return FALSE; + return false; } bool wxTopLevelWindowGTK::SetShape(const wxRegion& region) { - wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), FALSE, + wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false, _T("Shaped windows must be created with the wxFRAME_SHAPED style.")); GdkWindow *window = NULL; @@ -1197,3 +1271,132 @@ bool wxTopLevelWindowGTK::IsActive() return (this == (wxTopLevelWindowGTK*)g_activeFrame); } +void wxTopLevelWindowGTK::RequestUserAttention(int flags) +{ + bool new_hint_value = false; + + // FIXME: This is a workaround to focus handling problem + // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle hasn't + // yet been processed, and the internal focus system is not up to date yet. + // wxYieldIfNeeded ensures the processing of it, but can have unwanted side effects - MR + ::wxYieldIfNeeded(); + + if(m_urgency_hint >= 0) + g_source_remove(m_urgency_hint); + + m_urgency_hint = -2; + + if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() ) + { + new_hint_value = true; + + if (flags & wxUSER_ATTENTION_INFO) + { + m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this); + } else { + m_urgency_hint = -1; + } + } + +#if GTK_CHECK_VERSION(2,7,0) + if(!gtk_check_version(2,7,0)) + gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value); + else +#endif + wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value); +} + +void wxTopLevelWindowGTK::SetWindowStyleFlag( long style ) +{ +#if defined(__WXGTK24__) || GTK_CHECK_VERSION(2,2,0) + // Store which styles were changed + long styleChanges = style ^ m_windowStyle; +#endif + + // Process wxWindow styles. This also updates the internal variable + // Therefore m_windowStyle bits carry now the _new_ style values + wxWindow::SetWindowStyleFlag(style); + + // just return for now if widget does not exist yet + if (!m_widget) + return; + +#ifdef __WXGTK24__ + if ( (styleChanges & wxSTAY_ON_TOP) && !gtk_check_version(2,4,0) ) + gtk_window_set_keep_above(GTK_WINDOW(m_widget), m_windowStyle & wxSTAY_ON_TOP); +#endif // GTK+ 2.4 +#if GTK_CHECK_VERSION(2,2,0) + if ( (styleChanges & wxFRAME_NO_TASKBAR) && !gtk_check_version(2,2,0) ) + { + gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), m_windowStyle & wxFRAME_NO_TASKBAR); + } +#endif // GTK+ 2.2 +} + +#include + +/* Get the X Window between child and the root window. + This should usually be the WM managed XID */ +static Window wxGetTopmostWindowX11(Display *dpy, Window child) +{ + Window root, parent; + Window* children; + unsigned int nchildren; + + XQueryTree(dpy, child, &root, &parent, &children, &nchildren); + XFree(children); + + while (parent != root) { + child = parent; + XQueryTree(dpy, child, &root, &parent, &children, &nchildren); + XFree(children); + } + + return child; +} + +bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha) +{ + if (!m_widget || !m_widget->window) + return false; + + Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window); + // We need to get the X Window that has the root window as the immediate parent + // and m_widget->window as a child. This should be the X Window that the WM manages and + // from which the opacity property is checked from. + Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window)); + + unsigned int opacity = alpha * 0x1010101; + + // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay + if (alpha == 0xff) + XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False)); + else + XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False), + XA_CARDINAL, 32, PropModeReplace, + (unsigned char *) &opacity, 1L); + XSync(dpy, False); + return true; +} + +bool wxTopLevelWindowGTK::CanSetTransparent() +{ +#if GTK_CHECK_VERSION(2,10,0) + if (!gtk_check_version(2,10,0)) + { + if (gtk_widget_is_composited (m_widget)) + return true; + } + else +#endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves + { + return false; + } + +#if 0 // Don't be optimistic here for the sake of wxAUI + int opcode, event, error; + // Check for the existence of a RGBA visual instead? + return XQueryExtension(gdk_x11_get_default_xdisplay (), + "Composite", &opcode, &event, &error); +#endif +}